Furnace



' c. H. ROOT May 6, 1930.

FURNACE Filed May 13, 1927 l VENTOR 0.12 R002,

'BY m d/area ATTORNEYS ll atented may d lhdd CARL 3E. il/GOT, 61FDETEWIE,

F'D'ENAGE Application filed allay 13,

This invention relates to furnaces for household purposes and is moreparticularly directed to a stoker for producing an underfeeding of thefuel. a ln the usual household furnace the grates are placed at such adistance below the feeding door that the surface of a bed of tire willbe maintained substantially on a level with the feeding door so that thefuel may in be placed directly on the bed whereby the fuel such as coalis heated sufficiently to drive on the volatile products which are onlypartially consumed and carried d through the flue as carbon monoxide andsmoke representing incomplete combustion of approximately forty per centof the fuel;

An object of the present invention is the provision of a householdfurnace in which a mechanical stoker operated from the floor above thecellar is adapted to force a charge of fuel onto the grate when the fuelis coked and the volatile elements are burned with complete combustion.

A further object of the invention is the provision of a householdfurnace having a hopper in open communication with a casing in which aram is adapted to be reciprocated for forcing a charge of fuel across" aplate curved upwardly to a grate with the fuel being ejected onto thegrate when the fuel including the volatile products are completelyconsumed. p

This invention will be best understood from a consideration of thefollowing detailed description in view of theaccompanying drawingsforming a part of the specification; nevertheless it is to be understoodthat the invention is susceptible of such changes and modificationswhich shall define no material departure fromlthe salient features ofthe invention as expressed in the ap pended claim.

In the drawings Figure 1 is a vertical section of a furnace and stokerconstructed according to the principles of my invention,

Figure 2 is a horizontal section taken along the line 2-2 of Fig. 1 andFigure 3 is a vertical section taken along 50 the line 3-3 of Fig. 1.

1927. Serial Etc 191,123.

Referring more particularly to the drawings l0 designates a furnace ofany approved type but byway of example I have shown a hot air heater. Acentral casing 11 forms a combustion chamber 12 and a fire box limitedat the lower end by a grate 13, a fuel deflecting plate 14, and an ashroll 15. An ash pit 16 is located below the fire box. The deflectingplate is curved upwardly from the lower inner end of a ram housing 17and terminates along an edge of the grate 13..

The fuel feed opening 18 in the front of the furnace is disposed belowthe level of the fire bed and has the upper end substantially inhorizontal alinement with the grate 13. 'l he inner end of the housing17 projects into the furnace through the opening 18. lhe outer open endof the housing is supported by a bracket 19.

A hopper 20 has the upper end 21 open into which fuel is fed and saidhopper is of such a capacity that it will supply the furnace withsufficient fuel to last approximately a day. The capacity of the hoppermay be increased as will be appreciated. The lower end of the hopperopens directly into the housing.

A ram 23 in the form of a cylinder has a closed end 24 for forcing thefuel onto the deflecting plate and an open end at 25. A rod 26 issecured to the closed end 24: and extends axially of the ram.

A bell crank lever 27 has one arm 28 pivoted at 29 to the outer end ofthe rod 26 and the other arm 30 connected to a vertically disposed link31. The lever is rockably mounted on a bracket 32 secured to the outerend of the housing 17.

The link 31 extendsupwardl through an opening in the ceiling 33 of the"urnace room. The ceiling is in effect the door of a ground room fromwhich the rain is adapted to be remotely actuated. For this urpose lhave provided a bracket 34 on which is ivotally mounted a lever 35having a pivotal'connectioniwith the upper end of the linl; 3i.

ln the operation of the device, the lever 35 from an upper floor'in thehouse is rocked thereby reciprocating the link 31 and rocking the bellcrank lever 27, The bell crank causes reciprocation of the ram whichforces the fuel from the housing across the deflecting plate i t ontothe grate when the volatile products are released and consumed Withperfect combustion (luring coking of the fuel, thus eliminating waste.

it will be seen that by properly filling the hopper it will beunnecessary for the operator of the furnace to go to the furnace roomexcept to refill the hopper or to operate the ash roll ll claim Afurnace provided with a casing having a fuel 'l'eecling opening, ahousing having one end in communication With. the opening, a ramslirlably mounted in the housing, means for rcciprocating said ram,means for feedingz fuel into the housing; intermediate the euclsthereof, a grate normally located in a 26 horizontal plane above thelower edge of said opening and having its side edges spaced iroin thecasing, a deflecting plate curved upwamily and inwar ly from the loweredge of said opening and having its upper edge in close association withone edge of the grate a shaker bar located Within the casing and.disposed adjacent the opposite edge of the grate to receive the burnedfuel from the erase.

